What is Keepalived ?

Keepalived is a routing software written in C. The main goal of this project is to provide simple and robust facilities for loadbalancing and high-availability to Linux system and Linux based infrastructures. Loadbalancing framework relies on well-known and widely used Linux Virtual Server (IPVS) kernel module providing Layer4 loadbalancing. Keepalived implements a set of checkers to dynamically and adaptively maintain and manage loadbalanced server pool according their health. On the other hand high-availability is achieved by VRRP protocol. VRRP is a fundamental brick for router failover.

Install MySQL 5.6.x

Installation was successful but I noticed the following issues with MySQL-5.6. Using sudo service mysql start and sudo service mysql stop the database starts and stops correctly. But when I use sudo /etc/init.d/mysql stop the database service stops and than it gets spawn again automatically without any user input. Using ps -A | grep mysql I noticed that the spawn gets a new PID.

Have you noticed this issue with mysql. For the same reason mysqladmin -u root -p shutdown does the same thing as sudo /etc/init.d/mysql stop

Generate CSR:

Now Generate Certificate Signing Request (CSR), It also generates Private Key file(Make sure it is protected and no one has access to this file). We use RSA 2048 bit Encryption with SHA256 Hashing algorithm as shown below.

4. Install NetExtender

cd /opt/netExtenderClient

./install

— Dell SonicWALL NetExtender 8.5.793 Installer —
Checking library dependencies…
Checking pppd…
Do you want non-root users to be able to run NetExtender?
If so, I can set pppd to run as root, but this could be
considered a security risk.

Set pppd to run as root [y/N]? y
mode of ‘/usr/sbin/pppd’ retained as 4754 (rwsr-xr–)
mode of ‘/usr/sbin/pppd’ changed from 4754 (rwsr-xr–) to 4755 (rwsr-xr-x)
mode of ‘/etc/ppp’ retained as 0755 (rwxr-xr-x)
mode of ‘/etc/ppp/peers’ changed from 2750 (rwxr-s—) to 2754 (rwxr-sr–)
mode of ‘/etc/ppp/peers/provider’ changed from 0640 (rw-r—–) to 0644 (rw-r–r–)
mode of ‘/etc/ppp/peers’ changed from 2754 (rwxr-sr–) to 2755 (rwxr-sr-x)
Copying files…

———————— INSTALLATION SUCCESSFUL ———————

To launch NetExtender, do one of the following:

1. Click the NetExtender icon under the Applications menu
(look under the ‘Internet’ or ‘Network’ category)
or
2. Type ‘netExtenderGui’